Jen,
If adding a couple of more interfaces is code smell, take a look  at this 
<https://github.com/jOOQ/jOOL/tree/master/src/main/java/org/jooq/lambda/function>
 ...
Also, take a look at JS APIs like this 
<https://github.com/bevacqua/dragula#usage> - are we all supposed to define 
the same 4/5-argument functions for every js library that requires them?

On Thursday, June 2, 2016 at 3:10:44 PM UTC-7, Jens wrote:
>
>
> I will add 4 and 5 arg interfaces.
>>
>
> I can already smell the code smell..
>
> void myAsyncFunction(Func5<String, Boolean, Random, MyClass, Something> 
> onSuccess, Func5<Something, MyClass, Random, Boolean, String> onFailure);
>
> IMHO its fine to just have Func1 and for anything else chose a concrete 
> name for a concrete functional interface so you have a place to document 
> all these parameters. The above should be myAsyncFunction(OnSuccessCallback 
> ..., OnFailureCallback ...) with some nice JavaDoc in OnSuccessCallback, 
> OnFailureCallback.
>
> So think twice if its really a good idea to add any kind of possibly 
> "useful" interfaces.
>
> -- J.
>

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